23-letter words containing c, o, n, s, u
- united church of christ — an American Protestant denomination formed in 1957 by a union of the Evangelical and Reformed churches and the Congregational Christian churches.
- united methodist church — the largest denomination of the Methodist church in the U.S., formed in 1939 from the merger of the Methodist Episcopal Church, the Methodist Episcopal Church, South, and the Methodist Protestant Church, with the addition in 1968 of the Evangelical United Brethren.
- united states air force — the permanent or regular military air force of the United States, established in 1947 as a separate service under the authority of the Department of Defense: a branch of the U.S. Army before 1947. Abbreviation: USAF.
- unprotected intercourse — an act of sexual intercourse or sodomy performed without the use of a condom thus involving the risk of sexually transmitted diseases
- urban conservation area — an urban area that is protected, preserved and carefully managed
- vestibulocochlear nerve — either one of the eight pairs of cranial nerves that supply the cochlea and semicircular canals of the internal ear and contribute to the sense of hearing
- viscount horatio nelson — Viscount Horatio, 1758–1805, British admiral.
- viscount melville sound — an arm of the Arctic Ocean between Victoria and Prince of Wales islands to the S and Melville and Bathurst islands to the N, in the Northwest Territories and Nunavut, Canada. 250 miles (400 km) long and 100 miles (160 km) wide.
- volumetric displacement — the volume of air per revolution that passes through a mechanical pump when the pressure at the intake and the exhaust is the same as that of the atmosphere